if g(x)=2x^2-3X evaluate and expnd and simplify completly

[kaylamattie]

if g(x)=2x^2-3X evaluate and expnd and simplify completly

a)g(-2)
b)g(-c)
c)g(c+d)
d)g(d^2)

I need to know were t0 begin and is there a guide that will assist me in trying to evaluate the above expression.

 

[fasteddie65]

a)g(-2)
b)g(-c)
c)g(c+d)
d)g(d^2)

I need to know were t0 begin and is there a guide that will assist me in trying to evaluate the above expression.

a) g(-2) means to substitute -2 for x.

So g(-2) = 2(-2)^2 - 3(-2) = 2(4) - (-6) = 8 + 6 = 14

 

[stapel]

I need to know were t0 begin and is there a guide that will assist me in trying to evaluate the above expression.

To learn about function notation and how to evaluate functions, try some online lessons! :wink:

. . . . .Google results for "functions"

. . . . .Google results for "function notation"

. . . . .Google results for "evaluating functions"

Have fun!